Question

[FIND out whether the following changes are physical or chemical in nature. Mention P for physical change and C for chemical change]

a) Two chemicals are mixed together and a gas is produced__

b) An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone__

c) A bicycle changes colour as it rusts__

d) A solid is crushed to a powder__

e) Two substances are mixed and light is produced__

f) Mixing salt and pepper__​

Answer 1

Answer:

a) chemical change

b) physical change

c) chemical change

d) physical change

e) chemical change

f) physical change